Hi @Rohit Kulkarni ,
Welcome to Microsoft Q&A forum and thanks for your reaching out.
Unfortunately it is not possible to rename Serverless SQL pool in Azure Synapse Analytics. I would recommend you to please submit your feedback in Azure Synapse Analytics user voice forum with your requirement.
All the feedback shared in this forum are actively monitored and reviewed by Synapse Analytics product team. Also please do share the feedback link once it is posted as it would help others to upvote and/or comment on your suggestions.
Thank you
----------
Please do consider to click on "Accept Answer" and "Upvote" on the post that helps you, as it can be beneficial to other community members.